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Medical Research Council scale
-abbreviated from: Medical Research Council; Memorandum Number 45. Aids to the Examination of the Peripheral Nervous System. London, England: HM Stationery; 1976.
- Grade 0 = no contraction
- Grade 1 = flicker or trace of contraction
- Grade 2 = active movement with gravity eliminated
- Grade 3 = active movement against gravity
- Grade 4 = active movement against gravity and resistance
- Grade 5 = normal power
ASIA MUSCLE GRADING Scale
- Grade 0 total paralysis
- Grade 1 palpable or visible contraction
- Grade 2 active movement, full range of motion, gravity eliminated
- Grade 3 active movement, full range of motion, against gravity
- Grade 4 active movement, full range of motion, against gravity and provides some resistance
- Grade 5 active movement, full range of motion, against gravity and provides normal resistance
- Grade 5* muscle able to exert, in examiner’s judgement, sufficient resistance to be considered normal if identifiable inhibiting factors were not present
- NT not testable. Patient unable to reliably exert effort or muscle unavailable for testing due to factors such as immobilization, pain on effort or contracture.
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